/**
* @file elSelect.js
* @downloaded from http://www.cult-f.net/2007/12/14/elselect/
* @author Sergey Korzhov aka elPas0
* @site  http://www.cult-f.net
* @date December 14, 2007
* 
*/

var elSelect = new Class({
	options: {
		container: false,
		baseClass : 'elSelect'
	},
	source : false,
	selected : false,
	_select : false,
	current : false,
	selectedOption : false,
	dropDown : false,
	optionsContainer : false,
	hiddenInput : false,
	/*
	pass the options,
	create html and inject into container
	*/
	initialize: function(options){
		this.setOptions(options)
		
		if ( !this.options.container ) return
		
		this.selected = false
		this.source = $(this.options.container).getElement('select')
		this.buildFrameWork()
		
		$(this.source).getElements('.dropdown').each( this.addOption, this)
		$(this.options.container).setHTML('')
		this._select.injectInside($(this.options.container))
		
		this.bindEvents()
		
	},
	
	buildFrameWork : function() {
		this._select = new Element('div').addClass( this.options.baseClass )
		//	this._select.setStyle('opacity', 0.9); - fails in IE7
		this.current = new Element('div').addClass('selected').injectInside($(this._select))
		this.selectedOption = new Element('div').addClass('selectedOption').injectInside($(this.current))
		this.dropDown = new Element('div').addClass('dropDown').injectInside($(this.current))
		new Element('div').addClass('clear').injectInside($(this._select))
		this.optionsContainer = new Element('div').addClass('optionsContainer').injectInside($(this._select))
		var t = new Element('div').addClass('optionsContainerTop').injectInside($(this.optionsContainer))
		var o = new Element('div').injectInside($(t))
		var p = new Element('div').injectInside($(o))
		var t = new Element('div').addClass('optionsContainerBottom').injectInside($(this.optionsContainer))
		var o = new Element('div').injectInside($(t))
		var p = new Element('div').injectInside($(o))

		this.hiddenInput = new Element('input').setProperties({
			type  : 'hidden',
			name  : this.source.getProperty('name')				
		}).injectInside($(this.options.container))
				
	},
	
	bindEvents : function() {
		document.addEvent('click', function() { 
				if ( this.optionsContainer.getStyle('display') == 'block') 
					this.onDropDown()
			}.bind(this));
			
		$(this.options.container).addEvent( 'click', function(e) { new Event(e).stop(); } )		
		this.current.addEvent('click', this.onDropDown.bindWithEvent(this) )
		
	},
	
//add single option OR optoinGroup to select
	addOption: function( option ){
		if (option.tagName == "OPTGROUP") {
		 	var o = new Element('div').addClass('optgroup');
			o.addClass('optgroup');
			o.setText(option.label);
			o.injectBefore($(this.optionsContainer).getLast());
		} else {
	    	var o = new Element('div').addClass('option').setProperty('value',option.value)
			o.setProperty('name', this.source.name); // RE 04.03.08
			if ( option.disabled ) { o.addClass('disabled') } else {
				o.addEvents( {
					'click': this.onOptionClick.bindWithEvent(this),
					'mouseout': this.onOptionMouseout.bindWithEvent(this),
					'mouseover': this.onOptionMouseover.bindWithEvent(this)
				})
			}
			
			if ( $defined(option.getProperty('class')) && $chk(option.getProperty('class')) ) 
				o.addClass(option.getProperty('class'))
	
		
			if ( option.selected ) { 
				if ( this.selected) this.selected.removeClass('selected');
				this.selected = o
				o.addClass('selected')
				this.selectedOption.setText(option.text);
				this.hiddenInput.setProperty('value',option.value);
			}
			o.setText(option.text)		
			o.injectBefore($(this.optionsContainer).getLast())
		}
	},
	
	onDropDown : function( e ) {
			
			if ( this.optionsContainer.getStyle('display') == 'block') {
				this.optionsContainer.setStyle('display','none')
			} else {
				this.optionsContainer.setStyle('display','block')
				this.selected.addClass('selected')
				//needed to fix min-width in ie6
				var width =  this.optionsContainer.getStyle('width').toInt() > this._select.getStyle('width').toInt() ?
															this.optionsContainer.getStyle('width')
															:
															this._select.getStyle('width')
															
				this.optionsContainer.setStyle('width', width)
				this.optionsContainer.getFirst().setStyle('width', width)
				this.optionsContainer.getLast().setStyle('width', width)
			}						
	},
	onOptionClick : function(e) {
		var event = new Event(e)
		if ( this.selected != event.target ) {
			this.selected.removeClass('selected')
			event.target.addClass('selected')
			this.selected = event.target
			this.selectedOption.setText(this.selected.getText());
			this.hiddenInput.setProperty('value',this.selected.getProperty('value'));
			clickCall(this.selected.getProperty('name'), this.selected.getProperty('value')); // RE 04.03.08
		}
		this.onDropDown()
	},
	onOptionMouseover : function(e){
		var event = new Event(e)
		this.selected.removeClass('selected')
		event.target.addClass('selected')
	},
	onOptionMouseout : function(e){
		var event = new Event(e)
		event.target.removeClass('selected')
	}
	
});
elSelect.implement(new Events);
elSelect.implement(new Options);